VK_KHR_external_semaphore_capabilities

Other Extension Metadata

Last Modified Date

2016-10-20

IP Status

No known IP claims.

Contributors

• Jesse Hall, Google
• James Jones, NVIDIA
• Jeff Juliano, NVIDIA

Description

An application may wish to reference device semaphores in multiple Vulkan logical devices or instances, in multiple processes, and/or in multiple APIs. This extension provides a set of capability queries and handle definitions that allow an application to determine what types of external semaphore handles an implementation supports for a given set of use cases.

Promotion to Vulkan 1.1

All functionality in this extension is included in core Vulkan 1.1, with the KHR suffix omitted. The original type, enum and command names are still available as aliases of the core functionality.

New Commands

• vkGetPhysicalDeviceExternalSemaphorePropertiesKHR

New Structures

• VkExternalSemaphorePropertiesKHR
• VkPhysicalDeviceExternalSemaphoreInfoKHR
• Extending VkPhysicalDeviceProperties2:
  • VkPhysicalDeviceIDPropertiesKHR

New Enums

• VkExternalSemaphoreFeatureFlagBitsKHR
• VkExternalSemaphoreHandleTypeFlagBitsKHR

New Bitmasks

• VkExternalSemaphoreFeatureFlagsKHR
• VkExternalSemaphoreHandleTypeFlagsKHR

New Enum Constants

• VK_KHR_EXTERNAL_SEMAPHORE_CAPABILITIES_EXTENSION_NAME
• VK_KHR_EXTERNAL_SEMAPHORE_CAPABILITIES_SPEC_VERSION
• VK_LUID_SIZE_KHR
• Extending VkExternalSemaphoreFeatureFlagBits:
  • VK_EXTERNAL_SEMAPHORE_FEATURE_EXPORTABLE_BIT_KHR
  • VK_EXTERNAL_SEMAPHORE_FEATURE_IMPORTABLE_BIT_KHR
• Extending VkExternalSemaphoreHandleTypeFlagBits:
  • VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_D3D12_FENCE_BIT_KHR
  • VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_FD_BIT_KHR
  • VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_WIN32_BIT_KHR
  • VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_WIN32_KMT_BIT_KHR
  • VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_SYNC_FD_BIT_KHR
• Extending VkStructureType:
  • VK_STRUCTURE_TYPE_EXTERNAL_SEMAPHORE_PROPERTIES_KHR
  • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTERNAL_SEMAPHORE_INFO_KHR
  • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_ID_PROPERTIES_KHR

Version History

• Revision 1, 2016-10-20 (James Jones)
  • Initial revision